Needle



UNITE STATES PATENT OFFICE.

ELIZABETH CHESHIRE AND EDIVARD CHESHIRE, OF CINCINNATI, OHIO.

NEEDLE.

SPECIFICATION forming part of Letters Patent No. 317,508, dated May 12, 1885,

Application filed May ll), 1884.

T0 aZZ whom it may concern.-

Be it known that we, ELIZABETH (Junsn- IRE and EDWARD CHESHIRE, citizens of the United States, and residents of Cincinnati, in

the county of Hamilton and State of Ohio,

have invented a certain new and useful Improvement in Needles, of which the following is a specification.

Our invention relates to an improved needle, adapted for use more particularly in the book-sewing machine forming the subject matter of an application for Letters Patent ot' the United States filed by us May 24, 1883, Serial No. 96,063.

Our invention consists of a channeled or grooved needle-bar bent in two lines, one portion being slightly arched and the other straight, the straight portion being at the point end of the needle containing the eye and bent at a definite obtuse angle to the other portion or. body of said needle.

In the accompanying drawings, Figure l is a central longitudinal section of a needle embodying our invention, the view being taken on line a 90, Fig. 2. Fig. 2 is a plan view of the needle. Fig. 3 is a broken sectional elevation of parts of the teed-carriage and needleframes of our book-sewing machine, to which the needle is especially adapted, showing the said tecdearriage and needle-frames at their meeting-point in the sewing position. Fig. 4 is a detail view of the needle, showing its point entering the fold of a signature, which is in its sewing position, with one leafhorizontal and the other perpendicular.

A represents the fastenin gshank of the needle B, the convex or upwardly-curved portion of the needle-bar, and O the depressed eye end or point, which is straight and arranged at an obtuse angle to the arched portion or body B.

D represents a channel or groove along the upper convex face or periphery of the needlebar, running from the shank to the eye in the pointthereof. The object of thus channeling (No model.)

the needle-bar is to provide a receptacle along the top of theneedle for the twine, to prevent its dropping to either side to become entangled with the shuttle-thread previous to the proper interlooping operation.

E represents the needle-frame of the machine, to which the needle is secured by an eyebolt, e, which clamps the shank A.

F rep resents the feed-carriage provided with a toothed signattire-supporting plate, G.

9 represents either of the teeth of plate G.

H represents the shuttle, which may be of any suitable construction, but preferably pointed at both ends.

I represents the sign ature shown in position for the sewing operation in Figs. 3 and 4.

i represents the signaturefold.

In the operation of the needle in connection with a signature to sew it, the bent or depressed eye end 0 enters the fold 2', its dip being sulficient to prevent the point entering the leaves of the signature on either side the fold. Thus the danger of rupturing or defacing the leaves is obviated and the positive formation of the binding-loop is insured. The convex portion or upward curve, B, of the needle places the lower edge thereof above the lower edges of the adjacent teeth g of the signaturesupporting plate and out of the path of movement of the shuttle, thus avoiding any accidental collision of the shuttle points and the needle.

We claim- A needle composed of a grooved bar bent in two lines, one of such lines, which is straight and comprises the eye-pointed end of the needle, being bent at an obtuse angle to the other line, which is slightly arched outward and comprises the body of the needle, substantially as and for the purpose specified.

ELIZABETH CHESHIRE. EDWARD CHESHIRE. Witnesses:

THOMAS Onnsnmn, JNo. E. JONES. 

